640707472008

Names of 640707472008

• Cardinal: 640707472008 can be written as Six hundred forty billion, seven hundred seven million, four hundred seventy-two thousand and eight.

Scientific notation

• Scientific notation: 6.40707472008 × 10¹¹

Factors of 640707472008

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 232

Divisors of 640707472008

• Number of divisors d(n): 324
• Complete list of divisors:
  1 2 3 4 6 8 9 12 17 18 24 31 34 36 51 62 68 72 93 102 124 136 153 179 186 204 248 279 289 306 358 372 408 527 537 558 578 612 716 744 867 961 1054 1074 1116 1156 1224 1432 1581 1611 1734 1922 2108 2148 2232 2312 2601 2883 3043 3162 3222 3468 3844 4216 4296 4743 5202 5549 5766 6086 6324 6444 6936 7688 8649 8959 9129 9486 10404 11098 11532 12172 12648 12888 16337 16647 17298 17918 18258 18972 20808 22196 23064 24344 26877 27387 32041 32674 33294 34596 35836 36516 37944 44392 49011 49941 51731 53754 54774 64082 65348 66588 69192 71672 73032 80631 94333 96123 98022 99882 103462 107508 109548 128164 130696 133176 147033 155193 161262 172019 188666 192246 196044 199764 206924 215016 219096 256328 277729 282999 288369 294066 310386 322524 344038 377332 384492 392088 399528 413848 465579 516057 544697 555458 565998 576738 588132 620772 645048 688076 754664 768984 833187 848997 931158 993271 1032114 1089394 1110916 1131996 1153476 1176264 1241544 1376152 1548171 1603661 1634091 1666374 1697994 1862316 1986542 2064228 2178788 2221832 2263992 2306952 2499561 2924323 2979813 3096342 3207322 3268182 3332748 3395988 3724632 3973084 4128456 4357576 4810983 4902273 4999122 5848646 5959626 6192684 6414644 6536364 6665496 6791976 7946168 8772969 8939439 9259849 9621966 9804546 9998244 11697292 11919252 12385368 12829288 13072728 14432949 16885607 17545938 17878878 18519698 19243932 19609092 19996488 23394584 23838504 26318907 27779547 28865898 30791401 33771214 35091876 35757756 37039396 38487864 39218184 49713491 50656821 52637814 55559094 57731796 61582802 67542428 70183752 71515512 74078792 83338641 92374203 99426982 101313642 105275628 111118188 115463592 123165604 135084856 149140473 151970463 166677282 184748406 198853964 202627284 210551256 222236376 246331208 277122609 287055319 298280946 303940926 333354564 369496812 397707928 405254568 447421419 523453817 554245218 574110638 596561892 607881852 666709128 738993624 861165957 894842838 1046907634 1108490436 1148221276 1193123784 1215763704 1570361451 1722331914 1789685676 2093815268 2216980872 2296442552 2583497871 3140722902 3444663828 3579371352 4187630536 4711084353 5166995742 6281445804 6889327656 8898714889 9422168706 10333991484 12562891608 17797429778 18844337412 20667982968 26696144667 35594859556 37688674824 53392289334 71189719112 80088434001 106784578668 160176868002 213569157336 320353736004 640707472008
• Sum of all divisors σ(n): 1915407793845
• Sum of proper divisors (its aliquot sum) s(n): 1274700321837
• 640707472008 is an abundant number, because the sum of its proper divisors (1274700321837) is greater than itself. Its abundance is 633992849829

Bases of 640707472008

• Binary: 1001010100101101001001000010101010001000₂
• Hexadecimal: 0x952D242A88
• Base-36: 86C4OPE0

Squares and roots of 640707472008

• 640707472008 squared (640707472008²) is 410506064686882103552064
• 640707472008 cubed (640707472008³) is 263014302949484752646380202650624512
• The square root of 640707472008 is 800442.0478760469
• The cube root of 640707472008 is 8620.9130121079

Scales and comparisons

• 640,707,472,008 seconds is equal to 20,372 years, 26 weeks, 5 days, 17 hours, 46 minutes, 48 seconds.
• To count from 1 to 640,707,472,008 would take you about forty thousand, seven hundred forty-five years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 640707472008 cubic inches would be around 718.4 feet tall.

Recreational maths with 640707472008

• 640707472008 backwards is 800274707046
• The number of decimal digits it has is: 12
• The sum of 640707472008's digits is 45
• More coming soon!